What is the area of a rectangle with a length of 5 cm and a width of 3 cm

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

#12 find the value of x. #13 find the value of the variable.

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap